My heart is like a door that can be open or closed and locked.
When it's open, the treasure inside the heart can then be minded.
If the treasure of my heart is locked up, it becomes a deep mystery nobody can understand.
I lock up my cravings, emotions, and secrets.
My lock helps me safeguard my possessions so that I will not lose them, and no one can take them away from me.
Therefore, I lock my drawers, my doors, my safe and the door of my heart.